Financial Data
AT&T Inc.
Non-GAAP Wireless Reconciliation
Wireless Segment OIBDA
Dollars in millions
Unaudited
	Three Months Ended
	3/31/2008			6/30/2008			9/30/2008			12/31/2008			3/31/2009			6/30/2009			9/30/2009			12/31/2009
Service Revenues	$	10,605		$	10,894		$	11,227		$	11,523		$	11,646		$	11,960		$	12,372		$	12,585
Equipment Revenues		1,180			1,082			1,345			1,318			1,192			1,262			1,255			1,232
Total Operating Revenues		11,785			11,976			12,572			12,841			12,838			13,222			13,627			13,817
Operating Expenses
Operations and support		7,150			7,287			8,615			8,492			7,886			8,428			8,645			8,701
Depreciation and amortization		1,542			1,510			1,466			1,507			1,499			1,504			1,490			1,550
Total Operating Expenses		8,692			8,797			10,081			9,999			9,385			9,932			10,135			10,251
Operating Income		3,093			3,179			2,491			2,842			3,453			3,290			3,492			3,566
Plus: Depreciation and amortization		1,542			1,510			1,466			1,507			1,499			1,504			1,490			1,550
OIBDA		4,635			4,689			3,957			4,349			4,952			4,794			4,982			5,116
OIBDA as a % of Service Revenue		43.7	%		43.0	%		35.2	%		37.7	%		42.5	%		40.1	%		40.3	%		40.7	%

OIBDA is defined as operating income (loss) before depreciation and amortization. OIBDA differs from segment operating income (loss), as calculated in accordance with generally accepted accounting principles (GAAP), in that it excludes depreciation and amortization. OIBDA does not give effect to cash used for debt service requirements and thus does not reflect available funds for distributions, reinvestment or other discretionary uses. OIBDA is not presented as an alternative measure of operating results or cash flows from operations, as determined in accordance with GAAP. Our calculation of OIBDA, as presented, may differ from similarly titled measures reported by other companies.